package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;

/**
 * @author kabuda
 * @create 2022-11-05 14:44
 */
//第一个泛型为自定义注解，第二个为作用到什么类型
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    HashSet<Integer> set = new HashSet<>();

    /**
     * 初始化方法
     * @param constraintAnnotation
     */
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int [] vals=constraintAnnotation.vals();
        for (int val : vals) {
            set.add(val);
        }
    }

    /**
     * 判断是否校验成功
     * @param integer 需要校验的值
     * @param constraintValidatorContext
     * @return
     */
    @Override
    public boolean isValid(Integer integer, ConstraintValidatorContext constraintValidatorContext) {
        return set.contains(integer);
    }
}
